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|03-04-2014, 07:07 PM||#1 (permalink)|
Join Date: Oct 2008
Location: Neck deep in Reality, its lonely here
ASP's CCI thread inserts
Need to rethread grip frame on a sniper. Was on ASP and found the 8 and 10 size by 32 thread inserts. Could not find the drill and tap. Is the male threading proprietary like "helicoil" brand? If not, drill and tap sizes?
|03-04-2014, 07:19 PM||#3 (permalink)|
|03-05-2014, 11:05 AM||#6 (permalink)|
Join Date: Aug 2011
Location: SW Ontario
WARNING: I'm not in any way a machinist. I would wait for someone to confirm.
List of drill and tap sizes - Wikipedia, the free encyclopedia
So ~7/32 is my guess by that. They list it for 1/4-28.
Drill Sizes Cross Reference Chart
#2 by that for 1/4" - 36.
This one has a calculator:
Tap Drill Sizes
Their chart says #3 (for approx. 75% thread).
By drill bit # sizes, I presume they mean the gauge number.
Drill bit sizes - Wikipedia, the free encyclopedia
I assume that because:
#2 = 22.1% of 1" by their chart.
So 0.221 * .0254m = 5.61mm
and 7/32 = .219 which is roughly .221
7/32 * .0254m = 5.56mm
So, the numbers are all *roughly* equivalent. Which, in machinist talk, means they're completely different. Unless you're doing something "super sensitive," my guess it would be "good enough."
It's been ........ a while ........ since I took high school shop class so, again, I would wait for confirmation on those numbers. We were much more "eh, it'll do" in my shop class.
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